Many substances can go through physical and chemical changes. Which of the following is an example of a physical change? Questio
1 answer:
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Answer:
Here's what I get.
Explanation:
1. Write the chemical equation
Assume that we start with 4 L of HCl
2. Calculate the theoretical volume of oxygen
3. Add 35% excess
4. Calculate the theoretical volume of nitrogen
4. Calculate volumes of reactant used up
Only 85 % of the HCl is converted.
We can summarize the volumes in an ICE table
4HCl + O₂ + N₂ → 2Cl₂ + 2H₂O
I/L: 4 1.35 5.08 0 0
C/L: -0.85(4) -0.85(1) 0 +0.85(2) +0.85(2)
E/L: 0.60 0.50 5.08 1.70 1.70
5. Calculate the mole fractions of each gas in the product stream
Total volume = (0.60 + 0.50 + 5.08 + 1.70 + 1.70) L = 9.58 L